Jack Klugman in Rowan & Martin's Laugh-In (1967)

Jack Klugman and Ruth Buzzi in Rowan & Martin's Laugh-In (1967)

Jack Klugman, Dick Martin, and Dan Rowan in Rowan & Martin's Laugh-In (1967)

Jack Klugman, Victor Buono, Stan Haze, and Tony Randall in The Odd Couple (1970)

Jack Klugman, Michael Landon, Richard Dawson, Anita Gillette, Vicki Lawrence, Jo Ann Pflug, and Gene Rayburn in Match Game (1973)

Jack Klugman and Allan Arbus in The Odd Couple (1970)

Jack Klugman, Allan Arbus, and Tony Randall in The Odd Couple (1970)

Jack Klugman and Stephen J. Cannell in America's Top Sleuths (2006)

Jack Klugman and Connie Gilchrist in The Twilight Zone (1959)

Jack Klugman and S. John Launer in The Twilight Zone (1959)

Jack Klugman, Russell Horton, S. John Launer, and Kreg Martin in The Twilight Zone (1959)

Jack Klugman and Bill Mumy in The Twilight Zone (1959)

Jack Klugman and Tony Randall in Brother's Keeper (1998)

Jack Klugman and Willie Tyler in Rowan & Martin's Laugh-In (1967)

Jack Klugman and Lily Tomlin in Rowan & Martin's Laugh-In (1967)

Richard Benjamin, Jack Klugman, and Ali MacGraw in Goodbye, Columbus (1969)

Jack Klugman and Tony Randall in The Odd Couple (1970)

Henry Fonda, Martin Balsam, Jack Klugman, Lee J. Cobb, Ed Begley, Edward Binns, John Fiedler, E.G. Marshall, Joseph Sweeney, George Voskovec, Jack Warden, and Robert Webber in 12 Angry Men (1957)